P0325 - Knock Sensor 1 Circuit Malfunction (Bank 1)

Knock sensor circuit fault detected.

Code Overview

Knock sensor circuit fault detected.

Common Causes

• Sensor failure
• Wiring issue
• Engine mechanical noise

Diagnostic Steps

1. Inspect connector/wiring
2. Verify sensor torque/installation
3. Check for related engine noise

Likely Repairs & Cost Guides

Use test results to confirm the fault before pricing the repair.

Related OBD Codes

Browse the closest code-family pages when the same fault pattern often shows up nearby.

Next Steps

Move from the code to a diagnosis path, then into repair pricing once the fault is confirmed.